| abstract |
(A) an aromatic diallyl compound, (B) an aliphatic group-containing compound or acid derivative having four or more (meth) acryl groups in one molecule, (C) divinylbenzene and (D) two or more mercapto groups in one molecule Curable resin composition containing the polythiol compound which has is provided the optical material which has desired refractive index, Ave number, transparency, and the outstanding heat resistance. |